package Card;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class CardDemo {
    private final String[] suits = {"♥","♠","♦","♣"};
    public List<Card> buyCard() {
        List<Card> cardList = new ArrayList<>();
        for (int i = 0;i < 4;i ++) {
            for (int j = 1;j <= 13;j++) {
                Card card = new Card(suits[i],j);
                cardList.add(card);
            }
        }
        return cardList;
    }
    public void shuffle(List<Card> cardList) {
        Random random = new Random();
        for (int i = cardList.size()-1;i > 0;i--) {
            int index = random.nextInt(i);
            swap(cardList,i,index);
        }
    }
    private void swap(List<Card> cardList,int a,int b) {
        Card tmp = cardList.get(a);
        cardList.set(a,cardList.get(b));
        cardList.set(b,tmp);
    }
    public void getCard(List<Card> cardList) {
        List<Card> hand1 = new ArrayList<>();
        List<Card> hand2 = new ArrayList<>();
        List<Card> hand3 = new ArrayList<>();
        List<List<Card>> hands = new ArrayList<>( );
        hands.add(hand1);
        hands.add(hand2);
        hands.add(hand3);
        for (int i = 0;i < 5;i++) {
            for (int j = 0;j < 3;j++) {
                Card card = cardList.remove(0);
                hands.get(j).add(card);
            }
        }
        System.out.println("第一个人揭牌如下:");
        System.out.println(hand1);
        System.out.println("第二个人揭牌如下:");
        System.out.println(hand2);
        System.out.println("第三个人揭牌如下:");
        System.out.println(hand3);
        System.out.println("剩下的牌如下:");
        System.out.println(cardList);
    }
}
